User Manual

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10.3 Non-blocking Control
●You can find the RPIservo.py file in the server folder of the robot product, copy it to the same folder as
the program you want to run, and then you can use this method in your program.
import RPIservo # Import a library that uses multiple threads to control the steering gear
import time
sc = RPIservo.ServoCtrl() # Instantiate the object that controls the steering gear
sc.start() # Start this thread, when the servo does not move, the thread is suspended
while 1:
sc.singleServo(3, -1, 2)
time.sleep(1)
sc.stopWiggle()
sc.singleServo(3, 1, 2)
time.sleep(1)
sc.stopWiggle()
●The above code can be used to control the servo to reciprocate, except for time.sleep (), it will not block
the running of the context program.
●Call singleServo () to start the movement of the servo, call stopWiggle () to stop the movement of the
servo, where singleServo ()Three parameters are required, which are the port number of the servo to be
controlled (3 is to control the No. 3 servo connected to Motor HAT), the movement direction of the servo (1 or
-1), and the movement speed of the servo (the greater the value, the greater The sooner).